Stereophile Series on MQA Technology

[mansr]

10 hours ago, crenca said:

MQA is really about is piracy (what "the industry" blames their decline on) and protection of the only thing of value the labels have.  In other words, MQA is from beginning to end about DRM and controlling the consumer.

For the labels, MQA is about end-to-end DRM. For Bob Stuart, it's about end-to-end licensing revenue. For the consumer, it's about getting screwed end-to-end.

[asdf1000]

2 minutes ago, mansr said:

For the labels, MQA is about end-to-end DRM. For Bob Stuart, it's about end-to-end licensing revenue. For the consumer, it's about getting screwed end-to-end.

 

All MQA threads should be grouped and this should be the title.

 

[Miska]

19 hours ago, FredericV said:

 

And this extra ultrasonic noise doesn't seem like a problem for Stereophile:

https://www.stereophile.com/content/mqa-tested-part-2-fold

(c) Stereophile, used under fair use
 

 

I think part of that noise is noise-shaping noise due to word-length reduction and part is aliasing from the poor leaky decimation filter they use...

 

[Shadders]

22 minutes ago, Miska said:

 

I think part of that noise is noise-shaping noise due to word-length reduction and part is aliasing from the poor leaky decimation filter they use...

 

Hi,

A noob question here.

 

If MQA is noise shaped, does it use an non-recursive noise shaping algorithm ?

 

If it uses recursive, then surely this will introduce non linear phase artefacts which is what MQA is NOT about ?

 

Thanks and regards,

Shadders.

[Ralf11]

On 12/26/2017 at 1:40 PM, #Yoda# said:

The comprehensible concerns about MQA are now elevated by Michael Lavorgna to be a religious statement : "And for those people who want to avoid MQA for religious reasons, Qobuz's Sublime+ is MQA-free".
Read more at https://www.audiostream.com/content/qobuz-prépare-son-arrivée-aux-etats-unis-yes-us#qkoRMIP2FX0d57W6.99

 

sounds like ML is using the Farce

[Evangelist]

On 17-12-2017 at 11:45 AM, FredericV said:

MQA also hired Hans Beekhuyzen for very similar reasons. Hans even pasted emails from Bob in his video's, as if this was proof MQA does not contain any DRM. Guess he did not read the patent which includes the deliberate degrading which MQA offers as a feature.

I was Not even invented to the MQA press conference and I was never payed any amount or granted any privilege by MQA, Bob Stuart, Meridian or any other company or person for my opinion on MQA. I have never been payed for influence on ANY journalistic work I have ever done and I will never have money influence my opinions. So, FredericV, do your home work and while you're at it, read the MQA publications again (I have read about 125 pages of it) and you'll see you're wrong there too. Hans Beekhuyzen

[FredericV]

8 minutes ago, Evangelist said:

I was Not even invented to the MQA press conference and I was never payed any amount or granted any privilege by MQA, Bob Stuart, Meridian or any other company or person for my opinion on MQA. I have never been payed for influence on ANY journalistic work I have ever done and I will never have money influence my opinions.

 

So please elaborate why you registered as Evangelist.

 

8 minutes ago, Evangelist said:

So, FredericV, do your home work and while you're at it, read the MQA publications again (I have read about 125 pages of it) and you'll see you're wrong there too. Hans Beekhuyzen

 

We did. Did you study all reverse engineering work on MQA? Probably not.

[Evangelist]

that's the wrong way around. Please proof that I was payed by MQA or associates. You're the one that made the acquisition.

[FredericV]

4 minutes ago, Evangelist said:

that's the wrong way around. Please proof that I was payed by MQA or associates. You're the one that made the acquisition.

I get your commercial emails advertising your paid services. You even were outside our XFI room where I overheard what you are being paid for your video articles and such.

You should haven been smarter, instead of registering as Evangelist.

[Evangelist]

Yes, and?? Did you see any MQA commercial on my channel? Further more adds are adds and will never influence my journalistic work. I think you're dutch, so ask around. Some distributors hate me for it.

[Spacehound]

12 minutes ago, Evangelist said:

I was Not even invented to the MQA press conference and I was never payed any amount or granted any privilege by MQA, Bob Stuart, Meridian or any other company or person for my opinion on MQA. I have never been payed for influence on ANY journalistic work I have ever done and I will never have money influence my opinions. So, FredericV, do your home work and while you're at it, read the MQA publications again (I have read about 125 pages of it) and you'll see you're wrong there too. Hans Beekhuyzen

We've  done our homework, dozen of pages of it. And so have others.  So there is actual PROOF, both by measurement and   mathematics,   that MQA  does  not do what they claim and also degrades the sound

[Evangelist]

We can disagree technically, I have no problem with that. The point here is that I supposedly am on the take. That is slander and that where I demand proof.

[Evangelist]

BTW Evangelist means nothing more than "bringer of good news' and that is what I try to do: bring good audio news.

[Spacehound]

1 minute ago, Evangelist said:

We can disagree technically, I have no problem with that. The point here is that I supposedly am on the take. That is slander and that where I demand proof.

I don't care whether you are "on the take" or not.

 

I am  dealing with proven facts. Which are the only things that matter.

[FredericV]

3 minutes ago, Evangelist said:

Yes, and?? Did you see any MQA commercial on my channel? Further more adds are adds and will never influence my journalistic work. I think you're dutch, so ask around. Some distributors hate me for it.

MQA has stated in their year report they have key opinion makers.

You have shown to be very uncritical towards MQA, just copy pasting the marketing of MQA into video series, like other magazines who put it in magazines or the web. You also made clear mistakes not understanding the dragonfly, but at least you admitted your fault later.

You also have a lot of video's where you try to debunk the MQA criticasters. You even have video's where you hammer on the need for 24/192 for MQA's time domain argument (which was already debunked by Archimago and other researchers).

Did you even study the reverse engineering work by Mans Rullgard, Archimago, Xivero, Soxr and the Chaos Computer Club?
All of MQA's filters have been dumped, we know exactly what is happening in devices like the dragonfly.


 

[Evangelist]

show me then when and where I am payed by whom

[FredericV]

1 minute ago, Evangelist said:

show me then when and where I am payed by whom

 

So you make all these video's trying to debunk arguments against MQA (like the ones in this thread) just for free? As a hobby?

Mot evangelists are being paid for their work.
 

[Evangelist]

Don't come back with rhetorical questions but show me your proof. You can't for there is no.

 

[Spacehound]

8 minutes ago, Evangelist said:

show me then when and where I am payed by whom

Doesn't matter whether you are paid or not. But all you appear to do is 'cut and paste' from MQA sources.

 

So you just provide another advertisement for MQA, even if you do it for free. If you want to influence anyone here you will have to do better than that as we've seen it all before and remain unmoved as we  already  have  the facts..

[Evangelist]

I don't. But I don't want to be accused of being a payed MQA promotor when I'm not. It appears that  you can state anything here without being proven. I call this slander.

 

[FredericV]

10 minutes ago, Evangelist said:

Don't come back with rhetorical questions but show me your proof. You can't for there is no.

 

 

So you work for free at hifi trade shows doing presentations about MQA?

 

I still have your reply from the XFI show. It's not the only event where you gave MQA presentations.
You also did an MQA presentation at Chattelin Audio Systems, and this was in colaboration with the official Meridian distributor.

So again, convince me you are NOT affiliated with MQA / Meridian. You can't. You can't hide from google. Some way or another, you are being paid to be an MQA evangelist and/or to do these talks, video's .... you don't work for free. If it's direct on indirect does not matter.
 

[Evangelist]

I quit responding since you don't come up with any proof after requesting several times.

[Spacehound]

6 minutes ago, Evangelist said:

Don't come back with rhetorical questions but show me your proof. You can't for there is no.

 

It's everywhere. Including here. If you refuse to look at it that's up to you. We aren't going to repeat  it all or 'consolidate' it just for you.  You had just a well try and deny that the sun rises. 

[botrytis]

For me, the point is that people, with no skin in the game, have basic research and have shown how MQA works and why it is bad - period. Deflection, etc does not does not make them wrong.

[Spacehound]

Just now, botrytis said:

For me, the point is that people, with no skin in the game, have basic research and have shown how MQA works and why it is bad - period. Deflection, etc does not does not make them wrong.

And deflection is all it is.